tremendous

Extremely large in amount, extent, or size; enormous: synonym: enormous.

Very great in scope or importance.

Remarkable; outstanding.

Capable of making one tremble; terrible.

Such as may or does excite trembling, fear, or awe; overpowering in character or quality; awful; dreadful: as, a tremendous explosion; tremendous invective.

Hence Such as to excite astonishment or awe; unexampled; wonderful in a high degree; overwhelming; astounding: used intensively or hyperbolically.

Synonyms Frightful, terrific, horrible, appalling.

Fitted to excite fear or terror; such as may astonish or terrify by its magnitude, force, or violence; terrible; dreadful

awe-inspiring; terrific.